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RISTheoretical Study of Ductile Fracture in Steel Structures in the Presence of Spatial Variability in Toughness
Publisher: American Society of Civil Engineers
Abstract: Micromechanical or local models are increasingly used for predicting microvoid-growth–induced ductile fracture in structural steel components. Methods to calibrate and apply these models presume that both calibration ...
Simulating Local Buckling-Induced Softening in Steel Members Using an Equivalent Nonlocal Material Model in Displacement-Based Fiber Elements
Publisher: American Society of Civil Engineers
Abstract: Fiber-based elements are commonly used to simulate steel beam–columns because of their ability to capture P-M interactions and spread of plasticity. However, when mechanisms such as local buckling result in effective ...
Fiber-Based Nonlocal Formulation for Simulating Softening in Reinforced Concrete Beam-Columns
Publisher: American Society of Civil Engineers
Abstract: A nonlocal formulation framework is presented to address mesh-dependent strain localization in displacement-based frame element models in the presence of constitutive softening. The framework consists of a nonlocal ...
Simulating Interactive Buckling in Steel Members Using a Torsional Fiber Element Integrated with a Multiaxial Local Buckling Constitutive Model
Publisher: American Society of Civil Engineers
Abstract: AbstractInteractions between local, flexural, and lateral torsional buckling often compromise
the stability of structural steel members. An approach that integrates a displacement-based
fiber element capable of simulating ...